NSA and GCHQ "leak Tor bugs"

Source: http://www.bbc.co.uk/news/technology-28886465

It is no secret that the NSA and GCHQ actively search for vulnerbilities to exploit.

But according to Andrew Lewman (executive director of Tor) employees of the NSA and GCHQ have regularly been reporting flaws discovered by their collegues to Tor, via their anonymous bug reporting system.